100, 200 years old. it's not been upgraded or fixed or replaced, sometimes, ever. man: if these systems are not maintained, sooner or later they're going to fail. they all have a life expectancy. if you don't maintain them and constantly check them and then do what's necessary to rehabilitate or repair, you're going to have a big problem. and they're going to collapse. they're going to fail. and all of a sudden, the water, or the sewage that normally goes through them, will not have any place to go. it'll back up into homes, it'll back up onto the street. it's normally out of sight, out of mind. once it comes to the surface, it's a whole 'nother animal. melosi: you're talking about system-wide problems that would take tremendous human resources to correct. this is true with drinking water, as well as wastewater. man: first, our top story. thousands of people are without water tonight.